T-shaped iron blank forming die facilitating demolding

Abstract

This utility model provides a T-shaped iron blank forming mold that facilitates demolding, belonging to the field of T-shaped iron blank processing technology. It includes a lower mold and an upper mold. The lower mold includes a stamping groove, an insert groove, a first punch, a spring, and a top plate. The upper surface of the lower mold has a stamping groove, and the center of the upper surface of the stamping groove has an insert groove. The first punch is fixedly installed in the center of the insert groove, and a spring is fixedly installed at the bottom inner side of the insert groove. The top plate is fixedly installed at the top of the spring. During the demolding process, a hydraulic rod drives the upper mold upward to achieve demolding. The spring force pushes the ejector plate upward to achieve automatic demolding. Since the spring is in its naturally extended state, the horizontal height of the upper surface of the ejector plate and the top horizontal height of the first punch are both equal to the bottom horizontal height of the stamping groove. This ensures that when the ejector plate pushes the stamped T-shaped iron blank out of the insert groove, the first punch will not be inside the T-shaped iron blank, guaranteeing complete demolding.

Description

Technical Field

[0001] This utility model relates to the field of T-iron blank processing technology, and in particular to a T-iron blank forming mold that is easy to demold. Background Technology

[0002] T-iron, also known as electrical iron, is a material made of pure iron. It is mainly used in the construction of sound units. T-iron blanks are usually stamped by stamping molds. To meet the needs of different products, T-irons with a through hole in the center need to be manufactured.

[0003] For example, in the prior art, the patent with authorization announcement number CN208261635U discloses a forming mold for T-iron blanks. This device can compress and form the sawn blanks in the mold, and at the same time, symmetrical holes are punched at both ends of the blanks for accurate processing. When the upper mold and the lower mold are separated, the first return spring and the return spring will automatically push the blanks out, resulting in high processing efficiency.

[0004] However, during the demolding process of this device, the ejector pin is pushed by the return spring to move, thereby automatically ejecting the blank. After the T-iron blank is ejected, it will be on the first ejector pin of the lower die. At this time, the first punch is still inside the blank. After the first punch punches the blank, the friction between the first punch and the blank is large, making it difficult to remove the blank from the first ejector pin. Forcibly pulling it out can also easily damage the first punch. Therefore, a T-iron blank forming mold that is easy to demold is designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a T-shaped blank forming mold that is easy to demold.

[0006] The technical problem to be solved by this utility model is to provide a T-iron blank forming mold that is easy to demold, thereby solving the problem of inconvenient demolding of T-iron blank stamping molds in the prior art.

[0007] This utility model provides a molding die for forming T-iron blanks that is easy to demold, including a lower die and an upper die;

[0008] The lower die includes a stamping groove, an insert groove, a first punch, a spring, and an ejector plate. The upper surface of the lower die has a stamping groove, the center of the upper surface of the stamping groove has an insert groove, the center of the insert groove has a first punch, the bottom of the inner side of the insert groove has a spring, and the top of the spring has an ejector plate.

[0009] The upper die includes a second punch and a limiting ring, and the limiting ring is fixedly disposed below the outer surface of the upper die.

[0010] Preferably, the diameter of the upper mold is equal to the diameter of the embedding groove, and the diameter of the embedding groove is equal to the diameter of the flat round head above the T-iron.

[0011] Preferably, the difference between the depth of the stamping groove and the height difference between the limiting ring and the upper die is equal to the thickness of the flat round head above the T-iron.

[0012] Preferably, the diameter of the embedding groove is equal to the diameter of the cylindrical part below the T-iron, and the maximum compression length of the spring is equal to the diameter of the cylindrical part below the T-iron.

[0013] Preferably, when the spring is in its naturally extended state, the horizontal height of the upper surface of the ejector plate is equal to the horizontal height of the bottom of the stamping groove, and the horizontal height of the upper surface of the first punch is equal to the horizontal height of the bottom of the stamping groove.

[0014] Preferably, when the upper and lower dies are closed, the upper die is embedded in the stamping groove, and the limiting ring is tightly attached to the upper surface of the lower die, and the bottom surface of the second punch is attached to the upper surface of the first punch.

[0015] Preferably, the lower mold is mounted on a base, and columns are fixedly provided on both the left and right sides of the upper surface of the base. A top plate is fixedly provided on the top of the columns, and a hydraulic rod is mounted on the top plate. A lifting plate is fixedly provided at the output end of the hydraulic rod, and the upper mold is mounted on the lifting plate.

[0016] Preferably, a connecting rod is fixedly provided at the center of the left and right sides of the lifting plate, and a guide sleeve is fixedly provided at the other end of the connecting rod, and the guide sleeve is sleeved on the column.

[0017] 1. This utility model, by setting up an upper die and a lower die, allows for the stamping of T-iron blanks. The cut blank is placed in a stamping groove, and a hydraulic rod drives the upper die downwards, embedding it into the stamping groove of the lower die. During stamping, the blank presses against the ejector plate, causing the ejector plate to move downwards along the groove until the spring is compressed. The limiting ring on the upper die contacts the lower die, allowing the upper die to work with the lower die to stamp the blank into a T-iron blank with a disc-shaped upper part and a cylindrical lower part. Furthermore, through the cooperation of the first and second punches, through-holes are punched into the T-iron blank, eliminating the need for subsequent manual drilling and increasing work efficiency.

[0018] 2. During the demolding process of this utility model, the hydraulic rod drives the upper mold to move upward to achieve demolding, and the spring force pushes the ejector plate to move upward to achieve the effect of automatic demolding. Since the spring is in a naturally extended state, the horizontal height of the upper surface of the ejector plate and the top horizontal height of the first punch are equal to the bottom horizontal height of the stamping groove. This ensures that when the ejector plate pushes the stamped T-shaped blank into the groove, the first punch will not be inside the T-shaped blank, thus ensuring the integrity of demolding.

[0019] 3. This utility model has a guide sleeve. During the process of the hydraulic rod driving the lifting plate to rise and fall, the guide sleeve rises and falls along the column, which ensures the stability of the lifting plate and the normal mold closing and demolding of the upper and lower molds. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the lower mold of this utility model.

[0023] Figure 3 This is a vertically cut schematic diagram of the three-dimensional structure of the lower mold of this utility model.

[0024] Figure 4 This is a bottom view of the three-dimensional structure of the upper mold of this utility model.

[0025] Figure 5 This is a schematic cross-sectional view of the upper and lower molds of this utility model when they are closed.

[0026] [Figure Labels]

[0027] 1. Base; 2. Lower mold; 201. Stamping groove; 202. Embedding groove; 203. First punch; 204. Spring; 205. Ejector plate; 3. Column; 4. Top plate; 5. Hydraulic rod; 6. Lifting plate; 601. Connecting rod; 602. Guide sleeve; 7. Upper mold; 701. Second punch; 702. Limiting ring. Detailed Implementation

[0028] Example

[0029] like Figures 1-5 As shown, an embodiment of this utility model provides a T-iron blank forming mold that facilitates demolding, including a lower mold 2 and an upper mold 7;

[0030] The lower die 2 includes a stamping groove 201, an insert groove 202, a first punch 203, a spring 204, and an ejector plate 205. The upper surface of the lower die 2 is provided with a stamping groove 201, the center of the upper surface of the stamping groove 201 is provided with an insert groove 202, the center of the insert groove 202 is fixedly provided with a first punch 203, the bottom of the inner side of the insert groove 202 is fixedly provided with a spring 204, and the top of the spring 204 is fixedly provided with an ejector plate 205.

[0031] The upper die 7 includes a second punch 701 and a limiting ring 702, with the limiting ring 702 fixedly disposed below the outer surface of the upper die 7.

[0032] The lower mold 2 is installed on the base 1. Columns 3 are fixedly installed on both the left and right sides of the upper surface of the base 1. A top plate 4 is fixedly installed on the top of the column 3. A hydraulic rod 5 is installed on the top plate 4. A lifting plate 6 is fixedly installed at the output end of the hydraulic rod 5. The upper mold 7 is installed on the lifting plate 6.

[0033] With an upper die 7 and a lower die 2, when stamping a T-shaped iron blank, the cut blank is placed in the stamping groove 201. The hydraulic rod 5 drives the upper die 7 to move downward, and the upper die 7 is embedded in the stamping groove 201 on the lower die 2 to stamp the blank. During stamping, the blank squeezes the ejector plate 205, causing the ejector plate 205 to move downward along the embedded groove 202 until the spring 204 is compressed. The limiting ring 702 on the upper die 7 contacts the lower die 2, so that the upper die and the lower die work together to stamp the blank into a T-shaped iron blank with a disc shape on top and a cylindrical shape on the bottom. Through the cooperation of the first punch 203 and the second punch, through holes are punched in the T-shaped iron blank, eliminating the need for manual drilling of the T-shaped iron blank and increasing work efficiency.

[0034] During the demolding process, the hydraulic rod 5 drives the upper mold 7 to move upward to achieve demolding. The spring 204 pushes the ejector plate 205 upward to achieve the effect of automatic demolding. Since the spring 204 is in a naturally extended state, the horizontal height of the upper surface of the ejector plate 205 and the top horizontal height of the first punch 203 are equal to the bottom horizontal height of the stamping groove 201. This ensures that when the ejector plate 205 ejects the stamped T-shaped blank into the groove 202, the first punch 203 will not be inside the T-shaped blank, thus ensuring the integrity of demolding.

[0035] In this embodiment, the diameter of the upper mold 7 is equal to the diameter of the embedding groove 202, and the diameter of the embedding groove 202 is equal to the diameter of the flat round head above the T-iron.

[0036] In this embodiment, the difference between the depth of the stamping groove 201 and the height difference between the limiting ring 702 and the upper die 7 is equal to the thickness of the flat round head above the T-iron, which facilitates the stamping of the flat round head above the T-iron blank by fitting the embedded groove 202.

[0037] In this embodiment, the diameter of the embedded groove 202 is equal to the diameter of the lower cylindrical part of the T-iron, and the maximum compression length of the spring 204 is equal to the diameter of the lower cylindrical part of the T-iron, which facilitates the stamping of the lower cylinder from the T-iron blank.

[0038] In this embodiment, when the spring 204 is in its naturally extended state, the horizontal height of the upper surface of the ejector plate 205 is equal to the horizontal height of the bottom of the stamping groove 201, and the horizontal height of the upper surface of the first punch 203 is equal to the horizontal height of the bottom of the stamping groove 201. This makes it convenient for the ejector plate 205 to push the stamped T-shaped iron blank from the embedded groove 202 and the first punch 203, thereby achieving the effect of automatic demolding.

[0039] In this embodiment, when the upper mold 7 and the lower mold 2 are closed, the upper mold 7 is embedded in the stamping groove 201, and the limiting ring 702 is in close contact with the upper surface of the lower mold 2. The bottom surface of the second punch 701 is in contact with the upper surface of the first punch 203, so that the first punch 203 can cooperate with the second punch 701 to punch through holes in the T-shaped iron blank.

[0040] In this embodiment, a connecting rod 601 is fixedly provided at the center of the left and right sides of the lifting plate 6, and a guide sleeve 602 is fixedly provided at the other end of the connecting rod 601. The guide sleeve 602 is sleeved on the column 3.

[0041] By providing a guide sleeve 602, the guide sleeve 602 moves up and down along the column 3 during the process of the hydraulic rod 5 driving the lifting plate 6 to rise and fall, ensuring the stability of the lifting plate 6 and ensuring the normal mold closing and demolding of the upper mold 7 and the lower mold 2.

[0042] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A molding die for forming T-shaped iron blanks that facilitates demolding, characterized in that: Including the lower mold (2) and the upper mold (7); The lower die (2) includes a stamping groove (201), an insert groove (202), a first punch (203), a spring (204), and an ejector plate (205). The upper surface of the lower die (2) is provided with a stamping groove (201). An insert groove (202) is provided in the center of the upper surface of the stamping groove (201). A first punch (203) is fixedly provided in the center of the insert groove (202). A spring (204) is fixedly provided at the bottom inner side of the insert groove (202). An ejector plate (205) is fixedly provided at the top of the spring (204). The upper mold (7) includes a second punch (701) and a limiting ring (702), and the limiting ring (702) is fixedly provided below the outer surface of the upper mold (7).

2. The T-iron blank forming mold for easy demolding according to claim 1, characterized in that: The diameter of the upper mold (7) is equal to the diameter of the embedded groove (202), and the diameter of the embedded groove (202) is equal to the diameter of the flat round head above the T iron.

3. The T-iron blank forming mold for easy demolding according to claim 2, characterized in that: The difference between the depth of the stamping groove (201) and the height difference between the limiting ring (702) and the upper die (7) is equal to the thickness of the flat round head above the T-iron.

4. The T-iron blank forming mold for easy demolding according to claim 3, characterized in that: The diameter of the embedded groove (202) is equal to the diameter of the cylindrical part below the T-iron, and the maximum compression length of the spring (204) is equal to the diameter of the cylindrical part below the T-iron.

5. The T-iron blank forming mold for easy demolding according to claim 4, characterized in that: When the spring (204) is in its naturally extended state, the horizontal height of the upper surface of the ejector plate (205) is equal to the horizontal height of the bottom of the stamping groove (201), and the horizontal height of the upper surface of the first punch (203) is equal to the horizontal height of the bottom of the stamping groove (201).

6. The T-iron blank forming mold for easy demolding according to claim 5, characterized in that: When the upper mold (7) and the lower mold (2) are closed, the upper mold (7) is embedded in the stamping groove (201), and the limiting ring (702) is in close contact with the upper surface of the lower mold (2), and the bottom surface of the second punch (701) is in contact with the upper surface of the first punch (203).

7. The T-iron blank forming mold for easy demolding according to claim 1, characterized in that: The lower mold (2) is installed on the base (1). Columns (3) are fixedly installed on both the left and right sides of the upper surface of the base (1). A top plate (4) is fixedly installed on the top of the column (3). A hydraulic rod (5) is installed on the top plate (4). A lifting plate (6) is fixedly installed at the output end of the hydraulic rod (5). The upper mold (7) is installed on the lifting plate (6).

8. The T-shaped blank forming mold for easy demolding according to claim 7, characterized in that: A connecting rod (601) is fixedly installed in the center of the left and right sides of the lifting plate (6), and a guide sleeve (602) is fixedly installed at the other end of the connecting rod (601). The guide sleeve (602) is sleeved on the column (3).

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